To Every You I`ve Loved Before

"To Every You I've Loved Before" (僕が愛したすべての君へ), is a Japanese science fiction romance novel written by Yomoji Otono, later adapted into an animated film. The story is set in a world where people can travel between parallel universes. The protagonist, Koyomi Takasaki, lives with his mother after his parents' divorce. He enrolls in a prep school and struggles to make friends due to his social awkwardness. One day, his classmate Kazune Takigawa approaches him and declares that she is from the 85th parallel world, where they are lovers. The film explores themes such as parallel universes, different choices, and identity, while also incorporating elements of romance. It was released simultaneously with a companion film, "To Me, the One Who Loved You," and both can be watched in either order, providing different viewing experiences. The narrative encompasses not only parallel world romance but also delves into time travel and lost love, making it a philosophical and romantic science fiction piece.